Old Train Station in Singapore
Is Hub of Border-Crossing Confusion

SINGAPORE -- Every weekend, Jason Eng goes from Singapore to neighboring Malaysia by train from Tanjong Pagar station. Except this weekend -- when he arrived without having left.

By a quirk of history, this dilapidated station in downtown Singapore and the rail line to the border have remained part of Malaysia's rail system since Malaysia split from a short and unhappy union with Singapore 33 years ago. Since then, the station has...